Jeffrey S. Cramer is the editor of Walden: A Fully Annotated Edition (Yale University Press, 2004). A winner of a 2004 NOBA (National Outdoor Book Award) and a co-winner of the Boston Authors Club's 2005 Julia Ward Howe Special Award, Walden: A Fully Annotated Edition has been called a "handsome, 'all-things-Walden' edition" by the Boston Globe. USA Today said "Cramer's side notes are like short, illuminating conversations." The Quotable Thoreau (Princeton University Press, 2011) was a recipient of an Umhoefer Prize for Achievement in Humanities in 2011.

​In 2017 Jeff was the historical consultant for the Ken Burns-produced documentary, Walden, created for the Walden Pond State Reservation during the Thoreau Bicentennial.

Jeff's other works include I to Myself: An Annotated Selection from the Journal of Henry D. Thoreau (Yale University Press, 2007), The Maine Woods: A Fully Annotated Edition (Yale University Press, 2009), and The Portable Thoreau (Penguin, 2012). Essays by Henry D. Thoreau: A Fully Annotated Edition (Yale University Press) was published in 2013. His The Portable Emerson was published by Penguin in 2014.

Jim Flemming, of Wisconsin Public Radio, recently said, "Jeffrey Cramer lives and breathes Thoreau. He may know more about the bard at Walden Pond than anyone else alive."

Jeff is the Curator of Collections at the Walden Woods Project's Thoreau Institute at Walden Woods Library. He has appeared on various radio and television programs, including "On Point with Tom Ashbrook," WUMB-Boston's Commonwealth Journal, Wisconsin Public Radio's "To the Best of Our Knowledge," and C-SPAN's Book-TV. His essays and other writings have appeared in The Massachusetts Review, The Literary Review, and The Christian Science Monitor, among others, and have appeared in such collections as The Reality of Breastfeeding, Contemporary Literary Criticism, and The Robert Frost Encyclopedia.

Jeff is married to the artist Julia R. Berkley and is the father of two formerly-homeschooled daughters.